Company · Ownership research

GRAIL, Inc. GRAL

CIK 0001699031

Form 4 transactions dated Sep 1, 2023 to Sep 25, 2026, as reported to the SEC.

Insider trading Initial holdings Institutional holders

Insider filings on file run through 2026-08-31.

Insider purchases & sales

Purchased: $1.02M
Sold: $140.13M

Sep 1, 2023 – Aug 31, 2026
Available records · partial months are marked ·

202510 of 25 preview events

Date	Insider	Activity	Trade value (USD)	% of prior holding
2025-12-03	Ofman Joshua J. President	Sale	$1.30M 13,000 shares sold	3.40% sold Direct holding	▾
2025-12-03	RAGUSA ROBERT P Chief Executive Officer · Director	Sale	$3.81M 40,000 shares sold	5.49% sold Direct holding	▾
2025-12-03	Freidin Aaron Chief Financial Officer	Sale	$2.48M 25,000 shares sold	8.80% sold Direct holding	▾
2025-11-17	Freidin Aaron Chief Financial Officer	Sale	$134.40K 1,697 shares sold	0.59% sold Direct holding	▾
2025-11-17	ILLUMINA, INC. 10% owner	Sale	$79.85M 1,000,000 shares sold	22.21% sold Direct holding	▾
2025-10-16	Ofman Joshua J. President	Sale10b5-1 footnote	$501.41K 6,114 shares sold	1.58% sold Direct holding	▾
2025-10-15	RAGUSA ROBERT P Chief Executive Officer · Director	Sale	$498.62K 7,239 shares sold	0.99% sold Direct holding	▾
2025-10-15	Ofman Joshua J. President	Sale10b5-1 footnote	$673.98K 8,865 shares sold	2.23% sold Direct holding	▾
2025-10-06	Ofman Joshua J. President	Sale	$5.09M 81,385 shares sold	17.02% sold Direct holding	▾
2025-10-02	Ofman Joshua J. President	Sale10b5-1 footnote	$620.31K 9,692 shares sold	1.99% sold Direct holding	▾

Showing 25 / 25 record groups in 2025. The complete set is available through the API.

GRAIL, Inc. · GRAL

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The initial HTML of this page carries its exact data as script#research-data (JSON): values, units, scope, preview limits and SEC sources. Read it directly, no script or API key needed; script#research-access says what needs an account. For the year shown, this page lists 25 of 25 purchase / sale groups and 19 of 19 other groups; the totals and the monthly series cover the whole window.

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{"ticker":"GRAL","transaction_code":["P","S"],"transaction_form_type":"4","page_size":20}

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Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.

Non-cancelled, non-derivative purchase (P) and sale (S) rows dated inside the public window, as reported. Includes open-market and private transactions. Data after the latest filing is not asserted complete and is not zero-filled. A grouped event shares filing, transaction date, security, code, direction, ownership bucket and source. Derivative groups also match underlying security, exercise price, exercise/expiration dates and footnote references. Reported rows are retained; P/S price lots can be grouped. Post-transaction balances are never summed.